try { // Create the cipher Cipher blowCipher = Cipher.getInstance("Blowfish"); //$NON-NLS-1$ // Initialize the cipher for encryption blowCipher.init(Cipher.ENCRYPT_MODE, KEY); // Our cleartext as bytes byte[] cleartext = new String(source).getBytes("UTF-8"); //$NON-NLS-1$ // Encrypt the cleartext byte[] ciphertext = blowCipher.doFinal(cleartext); // Return a String representation of the cipher text return Base64.encode(ByteBuffer.wrap(ciphertext)).toString(); } catch (InvalidKeyException e) { LOG.severe(e.toString()); } catch (NoSuchAlgorithmException e) { LOG.severe(e.toString()); } catch (NoSuchPaddingException e) { LOG.severe(e.toString()); } catch (UnsupportedEncodingException e) { LOG.severe(e.toString()); } catch (IllegalStateException e) { LOG.severe(e.toString()); } catch (IllegalBlockSizeException e) { LOG.severe(e.toString()); } catch (BadPaddingException e) { LOG.severe(e.toString()); } return new String();
try { // Create the cipher Cipher blowCipher = Cipher.getInstance("Blowfish"); //$NON-NLS-1$ // Initialize the cipher for encryption blowCipher.init(Cipher.DECRYPT_MODE, KEY); // Encrypt the cleartext ByteBuffer ciphertext = Base64.decode(source); byte[] cipherArray = new byte[ciphertext.limit()]; ciphertext.get(cipherArray); // Our cleartext as bytes byte[] cleartext = blowCipher.doFinal(cipherArray); // Return a String representation of the cipher text return new String(cleartext, "UTF-8").toCharArray(); //$NON-NLS-1$ } catch (InvalidKeyException e) { LOG.severe(e.toString()); } catch (NoSuchAlgorithmException e) { LOG.severe(e.toString()); } catch (NoSuchPaddingException e) { LOG.severe(e.toString()); } catch (UnsupportedEncodingException e) { LOG.severe(e.toString()); } catch (IllegalStateException e) { LOG.severe(e.toString()); } catch (IllegalBlockSizeException e) { LOG.severe(e.toString()); } catch (BadPaddingException e) { LOG.severe(e.toString()); }
Clone fragments detected by clone detection tool
File path: /columba-1.4-src/core/src/main/java/org/columba/core/base/Blowfish.java File path: /columba-1.4-src/core/src/main/java/org/columba/core/base/Blowfish.java
Method name: String encrypt(char[]) Method name: char[] decrypt(String)
Number of AST nodes: 7 Number of AST nodes: 8
1
try {
1
try {
2
	    // Create the cipher
2
	    // Create the cipher
3
	    Cipher blowCipher = Cipher.getInstance("Blowfish"); //$NON-NLS-1$
3
	    Cipher blowCipher = Cipher.getInstance("Blowfish"); //$NON-NLS-1$
4
	    // Initialize the cipher for encryption
4
	    // Initialize the cipher for encryption
5
	    blowCipher.init(Cipher.ENCRYPT_MODE, KEY);
5
	    blowCipher.init(Cipher.DECRYPT_MODE, KEY);
6
	    // Our cleartext as bytes
6
	    // Encrypt the cleartext
7
	    ByteBuffer ciphertext = Base64.decode(source);
7
	    byte[] cleartext = new String(source).getBytes("UTF-8"); //$NON-NLS-1$
8
	    byte[] c
8
	    // Encrypt the
9
ipherArray = new byte[ciphertext.limit()];
10
	    ciphertext.get(cipherArray);
9
 cleartext
11
	    // Our cleartext as bytes
10
	    byte[] ciphertext = blowCipher.doFinal(cleartext);
12
	    byte[] cleartext = blowCipher.doFinal(cipherArray);
11
	    // Return a String representation of the cipher text
13
	    // Return a String representation of the cipher text
12
	    return Base64.encode(ByteBuffer.wrap(ciphertext)).toString();
14
	    return new String(cleartext, "UTF-8").toCharArray(); //$NON-NLS-1$
13
	} catch (InvalidKeyException e) {
15
	} catch (InvalidKeyException e) {
14
	    LOG.severe(e.toString());
16
	    LOG.severe(e.toString());
15
	} catch (NoSuchAlgorithmException e) {
17
	} catch (NoSuchAlgorithmException e) {
16
	    LOG.severe(e.toString());
18
	    LOG.severe(e.toString());
17
	} catch (NoSuchPaddingException e) {
19
	} catch (NoSuchPaddingException e) {
18
	    LOG.severe(e.toString());
20
	    LOG.severe(e.toString());
19
	} catch (UnsupportedEncodingException e) {
21
	} catch (UnsupportedEncodingException e) {
20
	    LOG.severe(e.toString());
22
	    LOG.severe(e.toString());
21
	} catch (IllegalStateException e) {
23
	} catch (IllegalStateException e) {
22
	    LOG.severe(e.toString());
24
	    LOG.severe(e.toString());
23
	} catch (IllegalBlockSizeException e) {
25
	} catch (IllegalBlockSizeException e) {
24
	    LOG.severe(e.toString());
26
	    LOG.severe(e.toString());
25
	} catch (BadPaddingException e) {
27
	} catch (BadPaddingException e) {
26
	    LOG.severe(e.toString());
28
	    LOG.severe(e.toString());
27
	}
29
	}
28
	return new String();
Summary
Number of common nesting structure subtrees1
Number of refactorable cases0
Number of non-refactorable cases1
Time elapsed for finding largest common nesting structure subtrees (ms)0.8
Clones locationClones are declared in the same class
Number of node comparisons48
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements5
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment3
    Time elapsed for statement mapping (ms)4.1
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    try
    1
    try
    2
    Cipher blowCipher = Cipher.getInstance("Blowfish");
    2
    Cipher blowCipher = Cipher.getInstance("Blowfish");
    3
    blowCipher.init(Cipher.ENCRYPT_MODE, KEY);
    3
    blowCipher.init(Cipher.ENCRYPT_MODE, KEY);
    3
    blowCipher.init(Cipher.DECRYPT_MODE, KEY);
    Differences
    Expression1Expression2Difference
    ENCRYPT_MODEDECRYPT_MODEVARIABLE_NAME_MISMATCH
    3
    blowCipher.init(Cipher.DECRYPT_MODE, KEY);
                                                                                                  
    4
    ByteBuffer ciphertext = Base64.decode(source);
    4
    byte[] cleartext = new String(source).getBytes("UTF-8");
    4
    byte[] cleartext = new String(source).getBytes("UTF-8");
    5
    byte[] cipherArray = new byte[ciphertext.limit()];
    Differences
    Expression1Expression2Difference
    cleartextcipherArrayVARIABLE_NAME_MISMATCH
    new String(source).getBytes("UTF-8")new byte[ciphertext.limit()]TYPE_COMPATIBLE_REPLACEMENT
    Preondition Violations
    Expression new String(source).getBytes("UTF-8") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    Expression new byte[ciphertext.limit()] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    5
    byte[] cipherArray = new byte[ciphertext.limit()];
                                                                  
    6
    ciphertext.get(cipherArray);
    Preondition Violations
    Unmatched statement ciphertext.get(cipherArray); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    6
    ciphertext.get(cipherArray);
    5
    byte[] ciphertext = blowCipher.doFinal(cleartext);
    5
    byte[] ciphertext = blowCipher.doFinal(cleartext);
    7
    byte[] cleartext = blowCipher.doFinal(cipherArray);
    Differences
    Expression1Expression2Difference
    ciphertextcleartextVARIABLE_NAME_MISMATCH
    cleartextcipherArrayVARIABLE_NAME_MISMATCH
    7
    byte[] cleartext = blowCipher.doFinal(cipherArray);
    6
    return Base64.encode(ByteBuffer.wrap(ciphertext)).toString();
    6
    return Base64.encode(ByteBuffer.wrap(ciphertext)).toString();
    Preondition Violations
    Unmatched statement return Base64.encode(ByteBuffer.wrap(ciphertext)).toString(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    Unmatched return Base64.encode(ByteBuffer.wrap(ciphertext)).toString();
                                                                                                                                    
                                                                                                                
    8
    return new String(cleartext, "UTF-8").toCharArray();
    Preondition Violations
    Unmatched statement return new String(cleartext,"UTF-8").toCharArray(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    Unmatched statement return new String(cleartext,"UTF-8").toCharArray(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    Unmatched return new String(cleartext,"UTF-8").toCharArray();
    8
    return new String(cleartext, "UTF-8").toCharArray();
    7
    return new String();
    7
    return new String();
    Preondition Violations
    Unmatched return new String();
                                                  
    Precondition Violations (10)
    Row Violation
    1Expression new String(source).getBytes("UTF-8") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    2Expression new byte[ciphertext.limit()] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Unmatched statement ciphertext.get(cipherArray); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    4Unmatched statement return Base64.encode(ByteBuffer.wrap(ciphertext)).toString(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    5Unmatched return Base64.encode(ByteBuffer.wrap(ciphertext)).toString();
    6Unmatched statement return new String(cleartext,"UTF-8").toCharArray(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    7Unmatched statement return new String(cleartext,"UTF-8").toCharArray(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    8Unmatched return new String(cleartext,"UTF-8").toCharArray();
    9Unmatched return new String();
    10Clone fragment #1 returns variables ciphertext , while Clone fragment #2 returns variables cipherArray, cleartext